SII(Seiko Instruments Inc)의 마이크로전지는 CCTV , 블랙박스, GPS모듈등 많은 산업군에서 RTC Back-up으로 사용되는 배터리입니다.

보통 -20 ~ +60℃에 동작됩니다만, SEIKO COIN BATTERY는 제품에 따라 -40 ~ 85℃에서 동작 가능합니다.

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[홈페이지] https://www.sii.co.jp/en/me/battery/

The microcells of Seiko Instruments Inc (SII) are batteries used as RTC back-ups in many industries, including CCTV, black box, and GPS modules.
Usually, it operates at -20 to +60℃, but SEIKO COIN BATTERY can operate at -40 to 85℃ depending on the product.

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[H/P] https://www.sii.co.jp/en/me/battery/